If you shoot a lightweight pellet so its velocity exceeds the speed of sound, it could result in your pellet breaking the sound barrier and the gun being louder than expected! The speed of sound depends on humidity, temperature and altitude. Generally speaking, it's between 1,060 fps and 1,115 fps.

Here are the benefits of the Nitro Piston:

Smoother cocking

Smoother shooting

No spring torque

No spring fatigue, even if you leave it cocked for hours

Functions perfectly in cold weather

Lasts longer than a metal spring

If you like military lookalike airguns and the black rifle/tactical build, Crosman's MTR77 air rifle was made for you! Plus, it's a great hunting rifle that'll keep your backyard and garden free of pest birds and other pesky critters.

Things I liked: I like the weight, it feels like a real AR. Super gun for the price. Made very well and is very accurate. It is very easy to mount a scope on and the handle and front sight are easy to take off.

Things I would have changed: Maybe a adjustable stock option would be nice. A .25 caliber would be nice.

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Overall rating5.0 5.0

Value for money5.0 5.0

Accuracy5.0 5.0

By Keith from USA on 2014-12-04See all my reviews

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5.02 ratings

Things I liked: Light weight compared to others in this power class also it has sling mounts, very nice. If you own an AR gun many of the rail parts will go right on this, sights etc.

Things I would have changed: For what these cost wouldn't really change much got one on sale for under 100.00 so have to consider that price point.

What others should know: I think for people that have no experience using the type of sight on this rifle they could have a longer learning curve. I saw people in the service that could never even qualify with the m-16. I switched the front sight for one designed to sit on the rail they are lower and the front blades are thinner. I sighted in with the stock carry handle sights and it did shoot to the left quite a bit. It takes awhile to break this in, I tested 8 different pellet types and the H&N Baracuda hunter 10.3gr will print single hole from a bench rest at 25 yards with both open sights and scoped. I have this sighted in at 40 yards and pellets touch. The gun is very sensitive to pellet typ, it hated RWS of any kind shot 5 inch groups. Beeman Kodiak 10.6 gr were great also .25 at 25yds. Crossman about 1 inch at 25yds.
you need a chrono to really see what is going on. Chp's 7.9gr=928fps, RWS 8.2gr=938fps,JSB exact 8.4gr=812fps, H&N Baracuda hunter 10.3gr=852fps. 7.1 gr=1005fps.

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Overall rating4.0 4.0

Value for money3.0 3.0

Accuracy2.0 2.0

By michael from USA on 2014-12-03See all my reviews

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5.01 rating

Things I liked: things i liked about the mtr77 was how it looks like a m16 with the full stock..and the sound of some pellets they sound like a 22 rifle

Things I would have changed: cocking the rifle takes alot of effort and is brutal first out of the box my arm actually hurt for a whole day ..and the accuracy of the rifle is not to good at all

What others should know: if you like the m16 or military look this rifle is a+..and it can be a deadly rifle .....as for cocking the rifle the weight of the rifle and accuracy..all a big thumbs down